We know that
<span>4 1/2 gallons-------> (4+2+1)/2-----> 9/2 gallons
</span>
1 <span> wall in the house will need --------> 3/4 of a gallon of paint
</span> X wall-----------------------------------> 9/2 gallons
x=(9/2)/(3/4)----> 9*4/2*3-----> 36/6----> 6 walls
the answer is
6 walls
Find the attachment photo for complete solution
old weight - decrease = new weight
decrease = weight * percent
decrease = 72 * .125 = 9 lbs
old weight - decrease = new weight
72 - 9 = new weight
63 lbs
A healthy weight for the dog is 63 lbs